One use case is deciding between weapons with similar stats/powers. When sifting through large number of items in a vault, Item weight becomes the deciding factor (lighter is favoured to avoid overencumbrance). The only way to check item weight is through the 'i'nventory menu, which requires picking up the item.

The only reason I would think not to is because it breaks immersion slightly (in that it shouldn't be possible to tell how much an item weighs until you pick it up).

One use case is deciding between weapons with similar stats/powers. When sifting through large number of items in a vault, Item weight becomes the deciding factor (lighter is favoured to avoid overencumbrance). The only way to check item weight is through the 'i'nventory menu, which requires picking up the item.

The only reason I would think not to is because it breaks immersion slightly (in that it shouldn't be possible to tell how much an item weighs until you pick it up).